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dalvyx [7]
3 years ago
8

What is the nutrient used to petri dishes to grow bacteria?​

Biology
1 answer:
rosijanka [135]3 years ago
8 0
Sterile powdered agar with nutrients can be mixed with water, heated and then poured into empty petri plates or ready-to-use dishes can be purchased. The undigestible agar is a gelatin-like substance with a semi solid surface on which the bacteria can grow while they consume the added nutrients (like sheep's blood).
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At the site of the rough endoplasmic reticulum, proteins that are destined for secretion are manufactured. Insulin is a protein-
Eva8 [605]

Answer:

The type of vesicular transport involved in the exporting of protein-based hormones, such as insulin, into the bloodstream is regulated exocytosis.

Explanation:

In general terms, exocytosis is a type of active transport that allows intracellular substances are released to the extracellular space, through of vesicles that fuse with the plasma membrane, which allow the exit of substances from inside the cell.

Regulated exocytosis is the specific vesicular transport for the secretion of substances, such as hormones. For this type of transport to exist, the presence of an extracellular signal is required, which will activate the fusion of the vesicles.

In the case of insulin, the external signal originates with the increase in blood glucose levels, a signal that penetrates the intracellular space and generates an increase in insulin production in the islets of Langerhans (pancreas).

Before insulin secretion occurs, the cell must be depolarized, allowing calcium to enter, which promotes transport by regulated exocytosis of insulin to the extracellular space.

Learn more:

brainly.com/question/1109181

4 0
3 years ago
Two genes for flower color in snapdragons are red and white. When a red flower is mated with a white flower, all of the offsprin
Artist 52 [7]
The correct answer is C incomplete dominance, because the pink flowers represent a third phenotype. Incomplete dominance<span> is a form of intermediate inheritance in which one allele for a specific trait is not completely expressed over the other allele which results in the formation of a third phenotype, which in this case is the pink flowers:)</span>
4 0
3 years ago
What are physical indicators of healthy water quality
algol13
Hello.

Physical indicators of healthy water quality are temperature<span> and turbidity.

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</span>
5 0
3 years ago
Please Help!!
Alex

Answer:

1. cell wall, chloroplasts

2. A plant cell is rectangular, while an animal cell is circular. This is because of the cell wall.

3. The function of the chloroplasts is to make sugars and pigments for photosynthesis.

4. The vacuole acts as a storage structure and can hold food for the organism.

Explanation:

6 0
4 years ago
PLEASE HELP I WILL GIVE 50 POINTS!!!!! (btw its science not biology)
Elena L [17]

Answer:

B. Catastrophism

Explanation:

Catastrophism is the theory that states that the Earth was mostly shaped by very sudden effects. These sudden and short-lived events would occur worldwide in scope and change the Earth rapidly. This is in contrast to uniformitarianism that states that slow incremental changes made the Earth like it is today. Changes like erosion.

4 0
3 years ago
Read 2 more answers
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